1

/* $Id$ */

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     3

#include "stdafx.h"

     4

#include "openttd.h"

     5

#include "table/sprites.h"

     6

#include "table/strings.h"

     7

#include "functions.h"

     8

#include "map.h"

     9

#include "tile.h"

    10

#include "vehicle.h"

    11

#include "viewport.h"

    12

#include "command.h"

    13

#include "town.h"

    14

#include "news.h"

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#include "sound.h"

    16

#include "depot.h"

    17

#include "vehicle_gui.h"

    18

    19

const SpriteID _water_shore_sprites[15] = {

    20

	0,

    21

	SPR_SHORE_TILEH_1,

    22

	SPR_SHORE_TILEH_2,

    23

	SPR_SHORE_TILEH_3,

    24

	SPR_SHORE_TILEH_4,

    25

	0,

    26

	SPR_SHORE_TILEH_6,

    27

	0,

    28

	SPR_SHORE_TILEH_8,

    29

	SPR_SHORE_TILEH_9,

    30

	0,

    31

	0,

    32

	SPR_SHORE_TILEH_12,

    33

	0,

    34

	0

    35

};

    36

    37

    38

static void FloodVehicle(Vehicle *v);

    39

    40

static bool IsClearWaterTile(TileIndex tile)

    41

{

    42

	TileInfo ti;

    43

	FindLandscapeHeightByTile(&ti, tile);

    44

	return (ti.type == MP_WATER && ti.tileh == 0 && ti.map5 == 0);

    45

}

    46

    47

/** Build a ship depot.

    48

 * @param x,y tile coordinates where ship depot is built

    49

 * @param p1 depot direction (0 through 3), where 0 is NW, 1 is NE, etc.

    50

 * @param p2 unused

    51

 */

    52

int32 CmdBuildShipDepot(int x, int y, uint32 flags, uint32 p1, uint32 p2)

    53

{

    54

	TileIndex tile, tile2;

    55

    56

	int32 cost, ret;

    57

	Depot *depot;

    58

    59

	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);

    60

    61

	if (p1 > 3) return CMD_ERROR;

    62

    63

	tile = TileVirtXY(x, y);

    64

	if (!EnsureNoVehicle(tile)) return CMD_ERROR;

    65

    66

	tile2 = tile + (p1 ? TileDiffXY(0, 1) : TileDiffXY(1, 0));

    67

	if (!EnsureNoVehicle(tile2)) return CMD_ERROR;

    68

    69

	if (!IsClearWaterTile(tile) || !IsClearWaterTile(tile2))

    70

		return_cmd_error(STR_3801_MUST_BE_BUILT_ON_WATER);

    71

    72

	ret = DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);

    73

	if (CmdFailed(ret)) return CMD_ERROR;

    74

	ret = DoCommandByTile(tile2, 0, 0, flags, CMD_LANDSCAPE_CLEAR);

    75

	if (CmdFailed(ret)) return CMD_ERROR;

    76

    77

	// pretend that we're not making land from the water even though we actually are.

    78

	cost = 0;

    79

    80

	depot = AllocateDepot();

    81

	if (depot == NULL) return CMD_ERROR;

    82

    83

	if (flags & DC_EXEC) {

    84

		depot->xy = tile;

    85

		_last_built_ship_depot_tile = tile;

    86

		depot->town_index = ClosestTownFromTile(tile, (uint)-1)->index;

    87

    88

		ModifyTile(tile,

    89

			MP_SETTYPE(MP_WATER) | MP_MAPOWNER_CURRENT | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR,

    90

			(0x80 + p1*2)

    91

		);

    92

    93

		ModifyTile(tile2,

    94

			MP_SETTYPE(MP_WATER) | MP_MAPOWNER_CURRENT | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR,

    95

			(0x81 + p1*2)

    96

		);

    97

	}

    98

    99

	return cost + _price.build_ship_depot;

   100

}

   101

   102

static int32 RemoveShipDepot(TileIndex tile, uint32 flags)

   103

{

   104

	TileIndex tile2;

   105

   106

	if (!CheckTileOwnership(tile))

   107

		return CMD_ERROR;

   108

   109

	if (!EnsureNoVehicle(tile))

   110

		return CMD_ERROR;

   111

   112

	tile2 = tile + ((_m[tile].m5 & 2) ? TileDiffXY(0, 1) : TileDiffXY(1, 0));

   113

   114

	if (!EnsureNoVehicle(tile2))

   115

		return CMD_ERROR;

   116

   117

	if (flags & DC_EXEC) {

   118

		/* Kill the depot */

   119

		DoDeleteDepot(tile);

   120

   121

		/* Make the tiles water */

   122

		ModifyTile(tile, MP_SETTYPE(MP_WATER) | MP_MAPOWNER | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR, OWNER_WATER, 0);

   123

		ModifyTile(tile2, MP_SETTYPE(MP_WATER) | MP_MAPOWNER | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR, OWNER_WATER, 0);

   124

	}

   125

   126

	return _price.remove_ship_depot;

   127

}

   128

   129

// build a shiplift

   130

static int32 DoBuildShiplift(TileIndex tile, int dir, uint32 flags)

   131

{

   132

	int32 ret;

   133

	int delta;

   134

   135

	// middle tile

   136

	ret = DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);

   137

	if (ret == CMD_ERROR) return CMD_ERROR;

   138

   139

	delta = TileOffsByDir(dir);

   140

	// lower tile

   141

	ret = DoCommandByTile(tile - delta, 0, 0, flags, CMD_LANDSCAPE_CLEAR);

   142

	if (ret == CMD_ERROR) return CMD_ERROR;

   143

	if (GetTileSlope(tile - delta, NULL)) return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);

   144

   145

	// upper tile

   146

	ret = DoCommandByTile(tile + delta, 0, 0, flags, CMD_LANDSCAPE_CLEAR);

   147

	if (ret == CMD_ERROR) return CMD_ERROR;

   148

	if (GetTileSlope(tile + delta, NULL)) return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);

   149

   150

	if (flags & DC_EXEC) {

   151

		ModifyTile(tile, MP_SETTYPE(MP_WATER) | MP_MAPOWNER | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR, OWNER_WATER, 0x10 + dir);

   152

		ModifyTile(tile - delta, MP_SETTYPE(MP_WATER) | MP_MAPOWNER | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR, OWNER_WATER, 0x14 + dir);

   153

		ModifyTile(tile + delta, MP_SETTYPE(MP_WATER) | MP_MAPOWNER | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR, OWNER_WATER, 0x18 + dir);

   154

	}

   155

   156

	return _price.clear_water * 22 >> 3;

   157

}

   158

   159

static int32 RemoveShiplift(TileIndex tile, uint32 flags)

   160

{

   161

	TileIndexDiff delta = TileOffsByDir(GB(_m[tile].m5, 0, 2));

   162

   163

	// make sure no vehicle is on the tile.

   164

	if (!EnsureNoVehicle(tile) || !EnsureNoVehicle(tile + delta) || !EnsureNoVehicle(tile - delta))

   165

		return CMD_ERROR;

   166

   167

	if (flags & DC_EXEC) {

   168

		DoClearSquare(tile);

   169

		DoClearSquare(tile + delta);

   170

		DoClearSquare(tile - delta);

   171

	}

   172

   173

	return _price.clear_water * 2;

   174

}

   175

   176

static void MarkTilesAroundDirty(TileIndex tile)

   177

{

   178

	MarkTileDirtyByTile(TILE_ADDXY(tile, 0, 1));

   179

	MarkTileDirtyByTile(TILE_ADDXY(tile, 0, -1));

   180

	MarkTileDirtyByTile(TILE_ADDXY(tile, 1, 0));

   181

	MarkTileDirtyByTile(TILE_ADDXY(tile, -1, 0));

   182

}

   183

   184

/** Builds a lock (ship-lift)

   185

 * @param x,y tile coordinates where to place the lock

   186

 * @param p1 unused

   187

 * @param p2 unused

   188

 */

   189

int32 CmdBuildLock(int x, int y, uint32 flags, uint32 p1, uint32 p2)

   190

{

   191

	TileIndex tile = TileVirtXY(x, y);

   192

	uint tileh;

   193

   194

	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);

   195

	tileh = GetTileSlope(tile, NULL);

   196

   197

	if (tileh == 3 || tileh == 6 || tileh == 9 || tileh == 12) {

   198

		static const byte _shiplift_dirs[16] = {0, 0, 0, 2, 0, 0, 1, 0, 0, 3, 0, 0, 0};

   199

		return DoBuildShiplift(tile, _shiplift_dirs[tileh], flags);

   200

	}

   201

   202

	return_cmd_error(STR_1000_LAND_SLOPED_IN_WRONG_DIRECTION);

   203

}

   204

   205

/** Build a piece of canal.

   206

 * @param x,y end tile of stretch-dragging

   207

 * @param p1 start tile of stretch-dragging

   208

 * @param p2 unused

   209

 */

   210

int32 CmdBuildCanal(int x, int y, uint32 flags, uint32 p1, uint32 p2)

   211

{

   212

	int32 ret, cost;

   213

	int size_x, size_y;

   214

	int sx, sy;

   215

   216

	if (p1 > MapSize()) return CMD_ERROR;

   217

   218

	sx = TileX(p1);

   219

	sy = TileY(p1);

   220

	/* x,y are in pixel-coordinates, transform to tile-coordinates

   221

	 * to be able to use the BEGIN_TILE_LOOP() macro */

   222

	x >>= 4; y >>= 4;

   223

   224

	SET_EXPENSES_TYPE(EXPENSES_CONSTRUCTION);

   225

   226

	if (x < sx) intswap(x, sx);

   227

	if (y < sy) intswap(y, sy);

   228

	size_x = (x - sx) + 1;

   229

	size_y = (y - sy) + 1;

   230

   231

	/* Outside the editor you can only drag canals, and not areas */

   232

	if (_game_mode != GM_EDITOR && (sx != x && sy != y)) return CMD_ERROR;

   233

   234

	cost = 0;

   235

	BEGIN_TILE_LOOP(tile, size_x, size_y, TileXY(sx, sy)) {

   236

		ret = 0;

   237

		if (GetTileSlope(tile, NULL) != 0) return_cmd_error(STR_0007_FLAT_LAND_REQUIRED);

   238

   239

			// can't make water of water!

   240

			if (IsTileType(tile, MP_WATER)) {

   241

				_error_message = STR_1007_ALREADY_BUILT;

   242

			} else {

   243

				/* is middle piece of a bridge? */

   244

				if (IsTileType(tile, MP_TUNNELBRIDGE) && _m[tile].m5 & 0x40) { /* build under bridge */

   245

					if (_m[tile].m5 & 0x20) // transport route under bridge

   246

						return_cmd_error(STR_5800_OBJECT_IN_THE_WAY);

   247

   248

					if (_m[tile].m5 & 0x18) // already water under bridge

   249

						return_cmd_error(STR_1007_ALREADY_BUILT);

   250

				/* no bridge? then try to clear it. */

   251

				} else

   252

					ret = DoCommandByTile(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);

   253

   254

				if (CmdFailed(ret)) return CMD_ERROR;

   255

				cost += ret;

   256

   257

				/* execute modifications */

   258

				if (flags & DC_EXEC) {

   259

					if (IsTileType(tile, MP_TUNNELBRIDGE)) {

   260

						// change owner to OWNER_WATER and set land under bridge bit to water

   261

						ModifyTile(tile, MP_MAP5 | MP_MAPOWNER, OWNER_WATER, _m[tile].m5 | 0x08);

   262

					} else {

   263

						ModifyTile(tile, MP_SETTYPE(MP_WATER) | MP_MAPOWNER | MP_MAP5 | MP_MAP2_CLEAR | MP_MAP3LO_CLEAR | MP_MAP3HI_CLEAR, OWNER_WATER, 0);

   264

					}

   265

					// mark the tiles around dirty too

   266

					MarkTilesAroundDirty(tile);

   267

				}

   268

   269

				cost += _price.clear_water;

   270

			}

   271

	} END_TILE_LOOP(tile, size_x, size_y, 0);

   272

   273

	return (cost == 0) ? CMD_ERROR : cost;

   274

}

   275

   276

static int32 ClearTile_Water(TileIndex tile, byte flags)

   277

{

   278

	byte m5 = _m[tile].m5;

   279

	uint slope;

   280

   281

	if (m5 <= 1) { // water and shore

   282

		// Allow building on water? It's ok to build on shores.

   283

		if (flags & DC_NO_WATER && m5 != 1)

   284

			return_cmd_error(STR_3807_CAN_T_BUILD_ON_WATER);

   285

   286

		// Make sure no vehicle is on the tile

   287

		if (!EnsureNoVehicle(tile))

   288

			return CMD_ERROR;

   289

   290

		// Make sure it's not an edge tile.

   291

		if (!(IS_INT_INSIDE(TileX(tile), 1, MapMaxX() - 1) &&

   292

				IS_INT_INSIDE(TileY(tile), 1, MapMaxY() - 1)))

   293

			return_cmd_error(STR_0002_TOO_CLOSE_TO_EDGE_OF_MAP);

   294

   295

		if (m5 == 0) {

   296

			if (flags & DC_EXEC)

   297

				DoClearSquare(tile);

   298

			return _price.clear_water;

   299

		} else if (m5 == 1) {

   300

			slope = GetTileSlope(tile,NULL);

   301

			if (slope == 8 || slope == 4 || slope == 2 || slope == 1) {

   302

				if (flags & DC_EXEC)

   303

					DoClearSquare(tile);

   304

				return _price.clear_water;

   305

			}

   306

			if (flags & DC_EXEC)

   307

				DoClearSquare(tile);

   308

			return _price.purchase_land;

   309

		} else

   310

			return CMD_ERROR;

   311

	} else if ((m5 & 0x10) == 0x10) {

   312

		// shiplift

   313

   314

		static const TileIndexDiffC _shiplift_tomiddle_offs[] = {

   315

			{ 0,  0}, {0,  0}, { 0, 0}, {0,  0}, // middle

   316

			{-1,  0}, {0,  1}, { 1, 0}, {0, -1}, // lower

   317

			{ 1,  0}, {0, -1}, {-1, 0}, {0,  1}, // upper

   318

		};

   319

   320

		if (flags & DC_AUTO) return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);

   321

		// don't allow water to delete it.

   322

		if (_current_player == OWNER_WATER) return CMD_ERROR;

   323

		// move to the middle tile..

   324

		return RemoveShiplift(tile + ToTileIndexDiff(_shiplift_tomiddle_offs[m5 & 0xF]), flags);

   325

	} else {

   326

		// ship depot

   327

		if (flags & DC_AUTO) return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);

   328

   329

		switch (m5) {

   330

			case 0x80: break;

   331

			case 0x81: tile -= TileDiffXY(1, 0); break;

   332

			case 0x82: break;

   333

			case 0x83: tile -= TileDiffXY(0, 1); break;

   334

			default:   return CMD_ERROR;

   335

		}

   336

   337

		return RemoveShipDepot(tile,flags);

   338

	}

   339

}

   340

   341

// return true if a tile is a water tile.

   342

static bool IsWateredTile(TileIndex tile)

   343

{

   344

	byte m5 = _m[tile].m5;

   345

   346

	switch (GetTileType(tile)) {

   347

		case MP_WATER:

   348

			// true, if not coast/riverbank

   349

			return m5 != 1;

   350

   351

		case MP_STATION:

   352

			// returns true if it is a dock-station

   353

			// m5 inside values is m5 < 75 all stations, 83 <= m5 <= 114 new airports

   354

			return !(m5 < 75 || (m5 >= 83 && m5 <= 114));

   355

   356

		case MP_TUNNELBRIDGE:

   357

			// true, if tile is middle part of bridge with water underneath

   358

			return (m5 & 0xF8) == 0xC8;

   359

   360

		default:

   361

			return false;

   362

	}

   363

}

   364

   365

// draw a canal styled water tile with dikes around

   366

void DrawCanalWater(TileIndex tile)

   367

{

   368

	uint wa;

   369

   370

	// determine the edges around with water.

   371

	wa = IsWateredTile(TILE_ADDXY(tile, -1, 0)) << 0;

   372

	wa += IsWateredTile(TILE_ADDXY(tile, 0, 1)) << 1;

   373

	wa += IsWateredTile(TILE_ADDXY(tile, 1, 0)) << 2;

   374

	wa += IsWateredTile(TILE_ADDXY(tile, 0, -1)) << 3;

   375

   376

	if (!(wa & 1)) DrawGroundSprite(SPR_CANALS_BASE + 57);

   377

	if (!(wa & 2)) DrawGroundSprite(SPR_CANALS_BASE + 58);

   378

	if (!(wa & 4)) DrawGroundSprite(SPR_CANALS_BASE + 59);

   379

	if (!(wa & 8)) DrawGroundSprite(SPR_CANALS_BASE + 60);

   380

   381

	// right corner

   382

	if ((wa & 3) == 0) DrawGroundSprite(SPR_CANALS_BASE + 57 + 4);

   383

	else if ((wa & 3) == 3 && !IsWateredTile(TILE_ADDXY(tile, -1, 1))) DrawGroundSprite(SPR_CANALS_BASE + 57 + 8);

   384

   385

	// bottom corner

   386

	if ((wa & 6) == 0) DrawGroundSprite(SPR_CANALS_BASE + 57 + 5);

   387

	else if ((wa & 6) == 6 && !IsWateredTile(TILE_ADDXY(tile, 1, 1))) DrawGroundSprite(SPR_CANALS_BASE + 57 + 9);

   388

   389

	// left corner

   390

	if ((wa & 12) == 0) DrawGroundSprite(SPR_CANALS_BASE + 57 + 6);

   391

	else if ((wa & 12) == 12 && !IsWateredTile(TILE_ADDXY(tile, 1, -1))) DrawGroundSprite(SPR_CANALS_BASE + 57 + 10);

   392

   393

	// upper corner

   394

	if ((wa & 9) == 0) DrawGroundSprite(SPR_CANALS_BASE + 57 + 7);

   395

	else if ((wa & 9) == 9 && !IsWateredTile(TILE_ADDXY(tile, -1, -1))) DrawGroundSprite(SPR_CANALS_BASE + 57 + 11);

   396

}

   397

   398

typedef struct LocksDrawTileStruct {

   399

	int8 delta_x, delta_y, delta_z;

   400

	byte width, height, depth;

   401

	SpriteID image;

   402

} LocksDrawTileStruct;

   403

   404

#include "table/water_land.h"

   405

   406

static void DrawWaterStuff(const TileInfo *ti, const WaterDrawTileStruct *wdts,

   407

	uint32 palette, uint base

   408

)

   409

{

   410

	uint32 image;

   411

   412

	DrawGroundSprite(wdts++->image);

   413

   414

	for (; wdts->delta_x != 0x80; wdts++) {

   415

		image =	wdts->image + base;

   416

		if (_display_opt & DO_TRANS_BUILDINGS) {

   417

			MAKE_TRANSPARENT(image);

   418

		} else {

   419

			image |= palette;

   420

		}

   421

		AddSortableSpriteToDraw(image, ti->x + wdts->delta_x, ti->y + wdts->delta_y, wdts->width, wdts->height, wdts->unk, ti->z + wdts->delta_z);

   422

	}

   423

}

   424

   425

static void DrawTile_Water(TileInfo *ti)

   426

{

   427

	// draw water tile

   428

	if (ti->map5 == 0) {

   429

		DrawGroundSprite(SPR_FLAT_WATER_TILE);

   430

		if (ti->z != 0) DrawCanalWater(ti->tile);

   431

		return;

   432

	}

   433

   434

	// draw shore

   435

	if (ti->map5 == 1) {

   436

		assert(ti->tileh < 16);

   437

		DrawGroundSprite(_water_shore_sprites[ti->tileh]);

   438

		return;

   439

	}

   440

   441

	// draw shiplift

   442

	if ((ti->map5 & 0xF0) == 0x10) {

   443

		const WaterDrawTileStruct *t = _shiplift_display_seq[ti->map5 & 0xF];

   444

		DrawWaterStuff(ti, t, 0, ti->z > t[3].delta_y ? 24 : 0);

   445

		return;

   446

	}

   447

   448

	DrawWaterStuff(ti, _shipdepot_display_seq[ti->map5 & 0x7F], PLAYER_SPRITE_COLOR(GetTileOwner(ti->tile)), 0);

   449

}

   450

   451

void DrawShipDepotSprite(int x, int y, int image)

   452

{

   453

	const WaterDrawTileStruct *wdts = _shipdepot_display_seq[image];

   454

   455

	DrawSprite(wdts++->image, x, y);

   456

   457

	for (; wdts->delta_x != 0x80; wdts++) {

   458

		Point pt = RemapCoords(wdts->delta_x, wdts->delta_y, wdts->delta_z);

   459

		DrawSprite(wdts->image + PLAYER_SPRITE_COLOR(_local_player), x + pt.x, y + pt.y);

   460

	}

   461

}

   462

   463

   464

static uint GetSlopeZ_Water(const TileInfo* ti)

   465

{

   466

	return GetPartialZ(ti->x & 0xF, ti->y & 0xF, ti->tileh) + ti->z;

   467

}

   468

   469

static uint GetSlopeTileh_Water(const TileInfo *ti)

   470

{

   471

	return ti->tileh;

   472

}

   473

   474

static void GetAcceptedCargo_Water(TileIndex tile, AcceptedCargo ac)

   475

{

   476

	/* not used */

   477

}

   478

   479

static void GetTileDesc_Water(TileIndex tile, TileDesc *td)

   480

{

   481

	if (_m[tile].m5 == 0 && TilePixelHeight(tile) == 0)

   482

		td->str = STR_3804_WATER;

   483

	else if (_m[tile].m5 == 0)

   484

		td->str = STR_LANDINFO_CANAL;

   485

	else if (_m[tile].m5 == 1)

   486

		td->str = STR_3805_COAST_OR_RIVERBANK;

   487

	else if ((_m[tile].m5&0xF0) == 0x10)

   488

		td->str = STR_LANDINFO_LOCK;

   489

	else

   490

		td->str = STR_3806_SHIP_DEPOT;

   491

   492

	td->owner = GetTileOwner(tile);

   493

}

   494

   495

static void AnimateTile_Water(TileIndex tile)

   496

{

   497

	/* not used */

   498

}

   499

   500

static void TileLoopWaterHelper(TileIndex tile, const TileIndexDiffC *offs)

   501

{

   502

	TileIndex target = TILE_ADD(tile, ToTileIndexDiff(offs[0]));